debayer filter fails for vertically flipped images about ps3eyedriver HOT 1 OPEN

Just a small followup for reference. Since opencv is a default included addon for openFrameworks I'm just using cv::demosaicing to do my conversions as it is hardware optimized, etc. For pixels with no vertical flip I use

        if (_pixelFormat == OF_PIXELS_GRAY)
        {
            code = vFlip ? cv::COLOR_BayerRG2GRAY : cv::COLOR_BayerGB2GRAY;
        }
        else
        {

The difference is just RG vs GB (the default debayering function in this library is hard-coded to GB). After choosing the right conversion type, I pass my pixels like this:

        cv::demosaicing(ofxCv::toCv(_rawCameraPixels),
                        ofxCv::toCv(_pixels),
                        code);

from ps3eyedriver.